Integration of a Smart Bed Infrastructure with Hospital Information Systems using Fast Health Interoperability Resources: *A case study of the Wireless biOmonitoring stickers and smart bed architecture: toWards Untethered Patients (WoW) R&D Project

This work describes a wireless patient biomonitoring system and focuses on its connections to a Hospital Information System (HIS) in use by multiple hospitals. The main objective is to gracefully integrate the various components of the proposed IoT architecture, with special emphasis on interoperability. The architecture is designed to monitor patients' vital signs via a locally embedded smart bed node that collects data via Bluetooth Low Energy (BLE) from wireless sensor patches attached to the patients' skin. The smart bed infrastructure connects to a remote gateway via Message Queuing Telemetry Transport (MQTT), which manages patient data. The Gateway also provides a translation layer using the Fast Healthcare Interoperability Resources (FHIR) protocol that uses a secure REST API to transmit health information to the clinical software in use, and fulfill interoperability requirements.